platform/chrome/cros_hps_i2c.c

29 static void hps_set_power(struct hps_drvdata *hps, bool state)
31 	gpiod_set_value_cansleep(hps->enable_gpio, state);
36 	struct hps_drvdata *hps = container_of(file->private_data,
38 	struct device *dev = &hps->client->dev;
45 	struct hps_drvdata *hps = container_of(file->private_data,
47 	struct device *dev = &hps->client->dev;
60 	struct hps_drvdata *hps;
63 	hps = devm_kzalloc(&client->dev, sizeof(*hps), GFP_KERNEL);
64 	if (!hps)
67 	hps->misc_device.parent = &client->dev;
68 	hps->misc_device.minor = MISC_DYNAMIC_MINOR;
69 	hps->misc_device.name = "cros-hps";
70 	hps->misc_device.fops = &hps_fops;
72 	i2c_set_clientdata(client, hps);
73 	hps->client = client;
80 	hps->enable_gpio = devm_gpiod_get(&client->dev, "enable", GPIOD_OUT_HIGH);
81 	if (IS_ERR(hps->enable_gpio)) {
82 		ret = PTR_ERR(hps->enable_gpio);
87 	ret = misc_register(&hps->misc_device);
93 	hps_set_power(hps, false);
100 	struct hps_drvdata *hps = i2c_get_clientdata(client);
103 	misc_deregister(&hps->misc_device);
109 	hps_set_power(hps, true);
115 	struct hps_drvdata *hps = i2c_get_clientdata(client);
117 	hps_set_power(hps, false);
124 	struct hps_drvdata *hps = i2c_get_clientdata(client);
126 	hps_set_power(hps, true);
132 	{ "cros-hps", 0 },
150 		.name = "cros-hps",